Least-limiting water range of the soil seedbed submitted to mechanical and biological chiselling under no-till

Filho, Osvaldo Guedes; Silva, Álvaro Pires da; Giarola, Neyde Fabíola Balarezo; Tormena, Cássio Antônio

doi:10.1071/sr13155

Cited by 12 publications

(1 citation statement)

References 58 publications

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“…Scientists have found that nitrate anions increase K leaching from the soil when using higher N rates, especially with manure fertilizers. However, this statement was not proved in our experiment (Filho et al, 2014;Timsina, 2018). Timsina (2018) declares that only nutrients that are not used in plant growth are leached out from agroecosystems.…”

Section: Nutrition Circulationmentioning

confidence: 63%

The main plant mineral nutrition balance on using ecological fertilizers

Burakova¹,

Bakšienė²,

Razukas³

2020

zemesukiomokslai

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The experiments were performed in stationary cylindrical lysimeters, which were filled with soil typical of the Eastern Lithuanian region: sandy loam and loamy sand soil (Haplic Luvisol). In the experiment, the main aim was to investigate the balance of nitrogen (N), phosphorus (P) and potassium (K) in the sandy loam and loamy sand Haplic Luvisol and to evaluate their effectiveness and suitability for the light texture soil and agricultural crop harvest in organic agriculture. It was found that, in general, during the three years of the experiment, the balance of N in the sandy loam and loamy sand soil was negative, but fertilization with organic sapropel showed the positive results: less N leaching losses content, compared to other organic-organic fertilizers. Fertilization with cattle manure did not ensure the P positive element balance, in both types of soils, due to a small amount of P in the fertilizer and a high accumulation in the yield. The amount of potassium added each year with NPK fertilizer ensured a positive element balance only in the sandy loam soil.

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Section: Nutrition Circulationmentioning

confidence: 63%

The main plant mineral nutrition balance on using ecological fertilizers

Burakova¹,

Bakšienė²,

Razukas³

2020

zemesukiomokslai

View full text Add to dashboard Cite

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Cover crop impacts on soil physical properties: A review

Blanco‐Canqui

Ruis

2020

Soil Science Soc of Amer J

142

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Cover crop (CC) impacts on soil ecosystem services including erosion control, C sequestration, soil productivity, and others have been reviewed. However, CC impacts on soil physical properties, which affect the soil's ability to perform a variety of soil ecosystem services, have not been synthesized. We reviewed 98 peer-reviewed publications up to 10 June 2020 on CCs and soil physical properties. Our review indicates that, in most studies, CCs reduce soil penetration resistance or compaction by 0-29% (average, 5%). They improve wet aggregate stability by 0-95% (average, 16%) and cumulative infiltration by 0-190% (average, 43%) but have negligible impacts on bulk density, dry aggregate stability, saturated hydraulic conductivity (K sat), unsaturated hydraulic conductivity (K unsat), volumetric water content at −10 to −33 kPa matric potential (field capacity), and plant available water. Soils under CCs can be cooler in daytime and warmer at nighttime, and warmer in winter and cooler in the rest of year. Volumetric heat capacity increases and thermal diffusivity decreases, indicating that CCs could moderate heat transport rate. Soil texture, tillage system, CC-derived soil C concentration, and CC duration affect CC impacts on physical properties. For example, the positive impacts from CCs can increase as CC management duration increases and combining CCs with no-till can improve water infiltration more than with tilled soils. Long-term data on hydraulic properties, thermal properties, dry aggregate stability, and pore-size distribution are scant. In general, CCs improve most soil physical properties, but the magnitude of improvement is highly site-and management specific.

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